<p>If the graduate side of 22 is anything like the undergrad side, the department is small enough to actually give personal attention to prospectives. You might get a good answer and some advice by looking up the faculty and finding one who's research interests you and starting a dialog.</p>
<p>I looked for an answer to your question, but the only information I could really find was for the EECS department (course 6). I would suggest contacting the department directly with your question.</p>
<p>I have no idea what the acceptance rate is for MIT undergrads vs. non-MIT undergrads. That makes a big difference in some departments. I also have no idea what it is for master's vs. PhD - Peterson's lumps them together.</p>